This title appears in the Scientific Report :
2023
Please use the identifier:
http://dx.doi.org/10.1016/j.fusengdes.2023.113530 in citations.
Please use the identifier: http://hdl.handle.net/2128/34113 in citations.
Thermomechanical analysis of a multi-reflectometer system for DEMO
Thermomechanical analysis of a multi-reflectometer system for DEMO
Microwave reflectometry systems are currently considered as a possible solution for plasma position and control, in DEMO. The primary integration approach for this diagnostic involves the incorporation of several groups of antennas and waveguides into a diagnostics slim cassette (DSC), a full 20–25...
Saved in:
Personal Name(s): | Nietiadi, Y. (Corresponding author) |
---|---|
Luís, R. / Silva, A. / Belo, J. H. / Vale, A. / Malaquias, A. / Gonçalves, B. / da Silva, F. / Santos, J. / Ricardo, E. / Biel, W. | |
Contributing Institute: |
Plasmaphysik; IEK-4 |
Published in: | Fusion engineering and design, 190 (2023) S. 113530 - |
Imprint: |
New York, NY [u.a.]
Elsevier
2023
|
DOI: |
10.1016/j.fusengdes.2023.113530 |
Document Type: |
Journal Article |
Research Program: |
Plasma-Wand-Wechselwirkung |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/34113 in citations.
Microwave reflectometry systems are currently considered as a possible solution for plasma position and control, in DEMO. The primary integration approach for this diagnostic involves the incorporation of several groups of antennas and waveguides into a diagnostics slim cassette (DSC), a full 20–25 cm thick poloidal sector dedicated to diagnostics. Since the passive front-end components of the reflectometry system (antennas and WGs) will be directly exposed to the plasma, an effective cooling system is required to keep the operating temperatures below the limits established for the DSC materials under neutron irradiation. Furthermore, the mechanical stresses experienced by the DSC should not jeopardize its structural integrity. In this work, the temperature distributions of a DSC segment with an updated cooling system design were estimated with a coupled steady-state thermal analysis performed with ANSYS Mechanical and ANSYS CFX, using the system-coupling module of ANSYS Workbench. It was found that the maximum temperature obtained in the DSC could be below the limits if the antennas are made of tungsten. These results were used as input in structural analysis, which has shown that the structure of the designed DSC fulfils the level-A requirements of RCC-MR for Immediate Plastic Collapse (IPC), Immediate Plastic Instability (IPI), and Immediate Plastic Flow Localization (IPFL). |